Stove construction



Jan. 3, 1933. P, A CELANDER 1,392,761

STOVE CONSTRUCTION L I INVENTOR PH/L /P H. CEL H/VOER TToRNEY Jan. 3,1933.

P. A. CELANDER sTovE CONSTRUCTION Filed June 17, 1929 5 Sheets-Sheet 2Jan. 3, 1933. P. A. CELANDER 1,892,761

sTovF. CONSTRUCTION Filed June 17. 1929 5 Sheets-Sheet 5 y/ 'l FI 20cBYQ M ATTOR N EY Jan. 3, 1933. p. A, CELANDER 1,892,761

STOVE CONSTRUCTION Filed June 17, 1929 5 Sheets-Sheet 4 BYOWM ATTORNEYJan. 3, 1933. P. A. CELANDER STOVE CONSTRUCTION Filed June 17, 1929 5Sheets-Sheet 5 ATTORN EY Patented Jan. 3, 1933 UNITED STATES PATENTOFFCE PHILIP A. CELANDER, 0F BLOOMINGTON, ILLINOIS, ASSIGNOR TO WILLIAMSOIL-0- MATIC HEATING CORPORATION, OF BLOOMINGTON, ILLINOIS, ACORPORATION 0F ILLINOIS smovn CONSTRUCTION Application led June 17,1929. Serial No. 371,342.

rlhis invention relates toimprovements in stoves and more particularlyto the construction of a stove particularly adapted to that class knownas oil heaters.

1t is an object of this invention to provide an oil burning heater soconstructed as to cause a circulation of the heated air thereabout toincrease its efficiency. lThis invention relates more particularly inthe construction of the casing which surrounds the heating element andparticularly relates to the provision of means whereby cool air isadmitted at the bottom of the casing and is caused to circulate upwardlyand outwardly by the heat produced from the burner.

With these and other objects in view reference is made to theaccompanying drawings which illustrate a preferred form of thisinvention, however, minor detail changes may be made therein withoutdeparting from the scope thereof.

Figure 1 is a view in front elevation of one embodiment of thisinvention.

Figure 2 is a view in transverse horizontal section taken on the line2-2, Figure 1, looking in the direction of the arrows.

Figure 3 is a view in central vertical section taken on the line 3 3,Figure 2, looking in the direction of the arrows, with the oil burnerillustrated in side elevation.

Figure 4 is a view in central vertical section taken on the line 4,Figure 1, looking in the direction of the arrows, illustrating theportion of the oil burner and' reservoir in side elevation.

Figure 5 is a view in front elevation of another form of this invention.

Figure 6 is a top plan view of Figure 5.

Figure 7 is a vertical section taken on the line 7-7, Figure 6, withparts in side elevation.

Figure 8 is a view in vertical section taken on the line 8 8, Figure 6,looking in the direction of the arrows.

Figure 9 is a view in horizontal section taken on the line 9-9, Figure7, looking in the direction of the arrows.

The embodiment of this invention, as illustrated in Figures' 1 to 4,comprises a casing 1, mounted upon a base 2, which is supported uponlegs 3. While the caslng 1s 1llustrated as having eight iat sides, it isimmaterial to this invention whether this casing be cylindrical orprovided with flat surfaces as shown. The heating element is preferablyof the oil burning type and, in this instance, is illustrated as acommercial type of oil burner mounted in a cylindrical receptacle 4,supported above the base 2. Inasmuch as the heating element does notform the essence of this invention and any other type of oil heater maybe substituted therefore, only a brief description of the heater and itsrelated parts is here given. It is preferable to provide a bracket 5,secured at the rear of casing 1 for supporting the oil reservoir 6 whichcommunicates with the burner element 7 of the heater through oil pipe 8.

The casing 1 surrounding the heating element extends a considerabledistance above it and is closed at the top with a cover 8a, so that theheat arising from the combustion of the oil will ascend and will betransmitted through the casing to the surrounding atmosphere. A door 9,is preferably provided in the front of the stove, which opens into theinterior of the casing through which the condition, or presence orabsence of combustion may be ascertained. In order to increase thecirculation of air about the casing a plurality of channels 10 aresecured in vertical relation about the interior of the casing 1. In thetype of stove illustrated, a channel 10 is secured to each flat surfacewith the exception of the rear surface which supports the oil reservoir.

It is preferable to construct the channels of equal depth and each oneis closed at the bottom and rests upon the base 2, and is closed at thetop beneath the cover 8, Each channel is also provided with an inlet 11adjacent its base which opens through the casing 1 to the outsideatmosphere, and with an outlet 12, adjacent its top also opening throughthe casing 1 to the outside atmosphere. The inlets 11 and 12 eachprovided with a louver 13, whereby the amount of air admitted anddischarged from the channel may be regulated.

The fumes or gases of combustion are conducted by the elbow 14 to theusual stove pipe communicating with the chimney.

It is readily seen that by this construction when the burner is ignitedthe inner walls of the channels 10 will transmit the heat therethroughand cause the column of air contained therein to ascend upward and passout through the outlets 12, and at the same time draw cooler atmosphericair into the interior of the channel through the inlets 11, so that aslong as the burner is in operation a circulation through the channelswill be set up and continued. This circulation will constantly supplyheated air to the room containing the stove and on account of themovement or circulation of the air will greatly increase the efficiencyof the heater.

The form of stove illustrated in Figures 5 to 9, inclusive, embody thesame principle as heretofore described in a somewhat differentconstruction. In this case the casing 1 of the saine general outsidecontour as illustrated in Figures l to 4 supports the burner element 7within a cylindrical receptacle 4 in the same manner. The legs 3 ofFigure 1 are omitted from the casing and a cylindrical elbow 15, issecured at one end centrally to the cover 8 and at the other end to therear of casing 1, as shown in Figure 7, the cover 8a and casing 1 beingprovided with apertures communicating with the interior of the elbow.

In this instance the bottom of the casing 1, is supported on brackets 16within a surrounding casing 17, so the general contour of the casing 1is spaced apart therefromA as shown in Figures 7 and 8. The surroundingcasing 17 is supported on legs 18, is provided at the back withapertures allowing the bracket 5 supporting the fuel tank to passtherethrough and be secured to the casing 1, and for the passage of theelbow 14 therethrough. It is preferable that the cover 19 of thesurrounding casing 17 be provided with an opening adapted to receive andsupport an evaporator pan 20, and the body of the cover between thiscentral opening and the outer circumference is provided with a pluralityof radial .slots 20a. The bottom of the surrounding casing 17 is openand the brackets 16, preferably support the bottom of the interiorcasing a slight distance thereabove. The front of the surrounding casing17 is provided with an opening connected by a flange member 21 to thedoor opening of the inner casing and is provided on the exterior of thesurrounding casing 17, with a door closure 22. Figure 7 illustrates asection of stove pipe 23, connected to the elbow 14, having interposedtherein a draft regulator 24.

In this instance the inner casing 1, will transmit heat from the burnerto the air space between it and the surrounding casing 17, causing theair to travel upward,

drawing fresh air in from the open bottom,

and that air passing between the two casings at the rear will enterelbow 15, which as it is directly over the burner and thereforesubjected to greater heat than the upper side walls, will increase thetemperature of the air passing therethrough to the space between thecovers 8il and 19, the heated air in this space passing out through theplurality of the slits 20a in the cover 19 and thereby a circulation ofheated air is set up in and about the stove.

The air drawn in from the bottom between the casings when the AburnerHaine is burning will be gradually heated as it ascends toward thedischarge slots 2()a in the cover 19 and that portion of the partiallyheated ascending air drawn into the elbow 15 will ascend more rapidly asits temperature increases imparting an additional upward impetus throughthe discharge slots and thereby increasing the rate of circulation setup between t-he walls ofthe casings 1 and 17.

' The evaporator pan 20 is preferably provided with a cover f2.0c havingslits 20d through which the Water vapor may pass.

What I claim is:

1. In a stove construction, a Huid burner therein, a casing about andspaced apart from said burner, a Huid supply reservoir supported uponthe exterior of said casing, and a plurality of channels secured to theinterior of the casing and about said burner, each channel opening tothe atmospheric air adjacent the top and bottom of the casing, wherebywhen the burner is in operation the heated air will pass out of thechannels at the upper openings and fresh air will be drawn thereinthrough the lower openings.

2. In a stove, a casing, a fluid burner therein spaced apart from thecasing, a fluid supply reservoir supported on the exterior of saidcasing, a plurality of vertical channels secured to the inner sides ofthe casing and surrounding said burner each channel provided With anopening through the casing adjacent its upper and lower extremities, anda register upon each opening whereby when the burner is in operation theamount of heated air discharged from the upper opening is regulated.

PHILIP A. CELANDER.

